Manufactured by CHG Bearing, the 013.70.2970.03 is a precision Four-Point Contact Ball Slewing Bearings. Key dimensional parameters include a 2750 mm bore diameter, a 3185 mm outer diameter, and a 179 mm overall width. This component is designed to meet standard load requirements and ensure consistent operational performance. For comprehensive technical evaluation, please explore the detailed specifications, dimensional data, product images, and CAD drawings provided below. A complete PDF data sheet is also readily available for direct download to support your engineering and procurement needs.
013.70.2970.03 - Four-Point Contact Ball Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 013.70.2970.03 |
| Brand | CHG® |
| Gear Type | Internal Gear |
| Characteristics | |
| Bearing Type | Single-row Four-point Contact Ball Slewing Bearing |
| Row Configuration | Single-row |
| Dimensions | |
| Bore Diameter (d) | 2750 mm |
| Width (B) | 179 mm |
| Outer Diameter (D) | 3185 mm |
| Number of Lubrication Holes n1 | 12 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 3104 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 2835 mm |
| Lubrication Port Thread / Size Φ1 | 10 |
| Inner Ring Mounting Hole Count n2 | 84 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 36 |
| Outer Ring Mounting Hole Count n3 | 83 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 39 |
| Gear Data | |
| Gear Module m | 16 mm |
| Gear Tip Diameter De | 2672 mm |
| Number of Gear Teeth z | 168 |
| Gear Face Width b | 160 mm |
| Addendum Modification Coefficient x | 0.5 |
| Reference Data | |
| Reference Mass (kg) | 2492 kg |
013.70.2970.03 3185 mm 2750 mm 3104 mm 2835 mm 179 mm Frequently Asked Questions about 013.70.2970.03 Four-Point Contact Ball Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Beyond standard alloy steel, CHG Bearing can customize the 013.70.2970.03 Four-Point Contact Ball Slewing Bearings using AISI 440C stainless steel, black oxide coating, zinc-nickel plating, or hybrid ceramic (Si3N4) balls for applications involving chemical exposure, marine salt fog, or galvanic current hazards.
To match diverse operational dynamics, CHG Bearing supplies 013.70.2970.03 with multiple cage configurations: high-strength pressed steel ribbon cages for standard duty, solid machined brass cages (M/CA) for heavy vibration and shock loads, or lightweight glass-fiber reinforced polyamide cages (TN9/TVP) for high acceleration and ultra-low noise.
Each 013.70.2970.03 produced in CHG Bearing manufacturing facilities features accurately profiled corner chamfers complying with DIN 5412 / ISO standard corner radii. When designing mating shafts and housing shoulders, machining an undercut or fillet radius strictly within the inner ring clearance limit (2750 mm bore side) ensures perfect planar contact without edge binding.
Standard batches of CHG Bearing 013.70.2970.03 conform strictly to ISO Class Normal (ABEC-1). For high-precision machine tool spindles, gearboxes, or robotics requiring tighter runouts, CHG Bearing can provide custom batches graded to ISO Class 6 (P6/ABEC-3) or ISO Class 5 (P5/ABEC-5) with 100% micrometer verification.
